SITE INFORMATION AND CORRESPONDENCE

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30 (ii ) Annually: Concentrations or values of the parameters listed in Item 2 (b) (3) for each ground-water monitoring well , along with the required evaluations for these parameters under Item 3 (b) . The owner or operator shall separately identify any significant differences from initial background found in the upgradient wells , in accordance with Item 3(c) (1 ) . During the active life of the facility, this information shall be submitted as part of the annual report required elsewhere in this document. (iii ) As a part of the annual report required elsewhere in this document: Results of the evaluation of ground-water surface elevations under Item 3(f) , and a description of the response to that evaluation , where applicable. (b) If the ground water is monitored to satisfy Item 3(d) (4) , the owner or operator shall : (1 ) Keep records of the analyses and evaluations specified in the plan, which satisfies Item 3(d) (3) , throughout the active life of the facility; and (2) Annually, until final closure of the facility, submit to the California Regional Water Quality Control Board a report containing the results of his ground-water quality assessment program which includes, but is not limited to, the calculated (or measured) rate of migration of hazard- ous waste or hazardous waste constituents in the ground water during the reporting period. This report shall be submitted as part of the annual report required elsewhere in this document. 5. Waiver The foregoing conditions may be waived if the owner or operator can demonstrate in writing to the satisfaction of the California Regional Water Quality Control Board that there is a low potential for migration of hazardous waste or hazardous waste constituents from the facility via the uppermost aquifer to water supply wells or to surface water.